核心差别
strenuous 强调strenuous 是一个形容词，laborious 则侧重laborious 指需要付出大量努力、时间或精力的
使用场景对比
| 对比方面 | strenuous | laborious |
|---|---|---|
| 核心含义 | strenuous 是一个形容词，指需要付出巨大努力或体力的，常用于描述活动、工作或任务非常费劲或艰苦。 | laborious 指需要付出大量努力、时间或精力的，形容任务、工作或过程艰苦、费劲，也可形容人勤劳、勤勉。 |
| 词性 | 形容词 | 形容词 |
| 使用语域 | strenuous 通常用作定语形容词，修饰名词如 activity、exercise、effort 等，表示这些事物需要大量体力或精力。 | laborious 常用作定语形容词，修饰名词如 task、work、process 等，强调过程的艰辛；也可作表语，描述主语的性质。 |
对比例句
After a strenuous hike, we were all exhausted and needed a long rest.
经过一次费劲的徒步后，我们都筋疲力尽，需要长时间休息。
She avoids strenuous exercise because of her recent injury.
由于最近的受伤，她避免进行费劲的锻炼。
Cleaning the entire house by myself was a laborious task that took all weekend.
独自打扫整个房子是一项艰苦的任务，花了我整个周末的时间。
He found the manual assembly of the furniture to be quite laborious and time-consuming.
他觉得手动组装家具相当费劲又耗时。
常见误用提醒
使用 strenuous：He made a strenuous try to finish the project. → He made a strenuous effort to finish the project. (strenuous 通常修饰 effort、activity 等名词，而不是 try；try 作为名词时较少与 strenuous 搭配，应改为 effort 以更符合英语习惯。)
使用 strenuous：This work is very strenuous for me to do. → This work is very strenuous for me. (strenuous 本身已表示费劲或艰苦，加上 to do 显得冗余；直接说 strenuous for me 更简洁自然。)
使用 laborious：This job is very laborious for me to do. → This job is very laborious. (错误：laborious 本身已包含“费劲”之意，无需再加 for me to do，这会使句子冗余。正确：直接使用 laborious 描述任务性质即可。)